Cisco IOS up to 11.3.1 privileges management

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Cisco IOS up to 11.3.1. This issue affects some unknown processing. Performing a manipulation results in privileges management. This vulnerability is known as CVE-1999-0159. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Cisco IOS up to 11.3.1 (Router Operating System). This affects some unknown functionality. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on availability. The summary by CVE is:

Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.

The weakness was published 08/12/1998 with Cisco. This vulnerability is uniquely identified as CVE-1999-0159. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (1238), SecurityFocus (BID 692†) and Vulnerability Center (SBV-2165†). Similar entry is available at VDB-14207. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

ADP CISA Base Score: 3.5
ADP CISA Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/12/1998 🔍
08/12/1998 +0 days 🔍
08/12/1998 +0 days 🔍
08/12/1998 +0 days 🔍
09/24/2003 +1869 days 🔍
06/19/2014 +3921 days 🔍
04/17/2026 +4320 days 🔍

Sourcesinfo

Vendor: cisco.com

Organization: Cisco
Status: Confirmed

CVE: CVE-1999-0159 (🔍)
GCVE (CVE): GCVE-0-1999-0159
GCVE (VulDB): GCVE-100-14205

OVAL: 🔍

X-Force: 1238
SecurityFocus: 692 - Cisco IOS Remote Router Crash
Vulnerability Center: 2165 - [cisco-sa-19980810-ios-login] DoS in Cisco IOS 9.x, 10.x, 11.x Router / Device, Medium

See also: 🔍

Entryinfo

Created: 06/19/2014 17:12
Updated: 04/17/2026 15:26
Changes: 06/19/2014 17:12 (55), 05/13/2019 09:57 (3), 08/27/2025 21:53 (18), 04/17/2026 15:26 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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